This week, InnoCentive announced the winners of its latest Web-based challenge: to use smartphones to detect potholes. And a graph posted by the National Institutes of Health this month highlights the growing imbalance between the youngest and oldest researchers.

An international group of 22 influenza scientists, public health officials, and journal editors recommended last week that the details of how a highly pathogenic bird flu virus was rendered capable of being transmitted easily among mammals be published in full.

To pay for the ITER fusion reactor, the United States may have to sacrifice the very community of researchers who would use the machine when it is ready.